SWIFT and the end of the telex era
In the back rooms of international banks in the early 1970s, moving money across borders meant something that resembled organized chaos: a paper tape, a telex machine, and an operator who had better not misread a digit. A payment from Hamburg to New York could take a week — routed through correspondent banks, decoded by hand, re-encoded, decoded again — with error rates that would be alarming if they weren’t so routine. Entire departments existed to chase down why a transfer had arrived in the wrong account, or with the wrong amount, or nowhere at all.
On May 3, 1973, 239 banks from fifteen countries signed a cooperative agreement in Brussels and incorporated the Society for Worldwide Interbank Financial Telecommunication — SWIFT. The founding was not spontaneous. Three years of feasibility studies, two consulting firms (Logica in London, Stanford Research Institute in California), and a great deal of anxiety among European banks had preceded it — driven, among others, by Jan Kraa of AMRO Bank and François Dentz of Banque de l’Union Parisienne (Scott & Zachariadis, LSE Research Online). That anxiety had a specific shape: the dominant infrastructure for cross-border payment messaging at the time was controlled by First National City Bank of New York — later renamed Citibank. European bankers were not keen to see the plumbing of global finance owned by a single American competitor. A cooperative, structured as a Belgian legal entity and headquartered outside Brussels in La Hulpe, was the political answer.
Carl Reuterskiöld, a Swedish banker, became SWIFT’s inaugural chief executive and held the post for sixteen years. The technical architecture was designed by Logica and built by Burroughs Corporation. What the network actually did was deceptively simple: it gave every participating institution a unique address and defined the exact format a payment message had to take — header, transaction type code, sender, receiver, currency, amount, value date — so that the sending machine and the receiving machine could both parse it without a human in the middle. The telex message that required interpretation was replaced by a structured MT (Message Type) code that required none.
Formal operating rules were established in 1975. The network went live on May 9, 1977, and the inaugural message was sent ceremonially by Prince Albert of Belgium — Belgian royalty inaugurating what amounted to the nervous system of global finance. By then membership had grown to 518 institutions in 22 countries.
The scale of what SWIFT replaced only becomes clear when you consider what the telex era actually cost. Banks employed teams of people to manually key, verify, and reconcile international wires. Settlement took days to weeks. Fraud was difficult to detect because there was no standard audit trail. One transposed digit — the wrong account number, a misread currency code — and the money sat somewhere in the ether, waiting for a human to locate it. SWIFT did not fix all of that overnight, but it imposed a common language on a process that had none, which is the precondition for fixing everything else.
Today the network carries over 42 million messages a day across more than 11,000 financial institutions in over 200 territories. Every international wire transfer still begins as a SWIFT message — the MT103 for cross-border payments, the MT202 for interbank settlements. The codes have been updated and the pipes run faster, but the fundamental architecture — a shared standard, owned cooperatively, readable by any party — has not changed since 1977.
Money had always moved in the language of whoever built the pipes. SWIFT was the first time all the major banks agreed to write that language down together.
Sources
- SWIFT — Wikipedia — founding date, 239 banks in 15 countries, telex predecessor, Citibank geopolitical motivation, Prince Albert first message (May 9, 1977), growth to 518 institutions.
- What Is the SWIFT Network — Ramp — telex era limitations, MT message format types, current scale (42 million messages daily, 11,000+ institutions, 200+ territories).
- Scott & Zachariadis, Origins and Development of SWIFT — LSE Research Online — founding architects Jan Kraa and François Dentz, Carl Reuterskiöld as first CEO, cooperative structure as political response to American banking dominance.